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E. C. PATTERSON.

Grain Separator.

No. 79,497. Patented June 30, 1868.

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ELIAS 0'. PATTERSON, or ROCHESTER, NEW YORK.

Letters Patent No. 79,497, dated June 30, v1 868.

IMPROVEMENT IN GRAIN-SEPARATOR:

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State of New York, have invented and I declare that the following is a. full, clear, and exact description of the same, reference being had to the accompanying drawings.

Figure 1 represents a side sectional view of my separator.

Figure represents top view of the under sieve. v

Figure 3 represents sectional view of the eccentrics on shaft.

Similar letters of reference in the difi'erent figures indicate thesame parts of my invention.

The object of my invention is to produce a shake to the uppcr and lower sieves, by which the grain can be rapidly passed over, without clogging on the sieves.

C represents the upper sieve. D represent under sieve.

nted. represents the bolt or pivot, on which the arm works. arm heel; and forth; H represents a. -:t side motion, at the same time it receives its end motion. I represen "under sieve, which books into a strap from th hoolrl is attached. K represents an oblong work upon a pivot above the eccentric, and nsthe len sequently gives twice the length of sh I v the upper sieve,..to take out the coarser'substance, it re L represents a pin, in the upper end of the arms, upon To enable others skilled in the art of manufacturing and using my invention,-I will describe the same. A represents ,the framework of my machine. represents the hopper, into which the grain is admitted. E represents the arm, by which the sieves are oper- Gr represents the eccentric, which works the wedge-shap'ejsl-ide upon each side of the lower sieve, which gives the sieve ts a hook, on 'the under lower end, of the e lower end of the arms. J represents the strap into which the hole in the arnis, in which the eccentric works, and as the arms gth of arms equal above and below the eccentric, it con eketo the lower sieve that it does-to the upper one. As I use zinc for quires a muchshorter shake than the under wire sieve. which the upper zinc sieve is-attachcd. What I claim as my invention, and desire to secure by Letters Patent, is-

1'. The arms E, upon pivots F, operated by eccentric, G, and operating upper and lower sieves, substantially as described.

2. Also the wedge -H on the lower sieve, for the purpose set forth. I

-- ELIAS O. PATTERSON.

Witnesses:

JOHN M. Bsnnwnnn, W. J. Fosrsn. 

